Traditional uses, phytochemistry and pharmacological attributes of Pterocarpus santalinus and future directions: A review.

ETHNOPHARMACOLOGICAL RELEVANCE: Pterocarpus santalinus, an ancient folk medicine, is endemic to the eastern ghats of south India, and the heartwood is prescribed since time immemorial for the mitigation of inflammatory disorders in traditional practice and ayurvedic system of medicines. AIM OF THE STUDY: This review aims to provide collective pieces of information of the traditional uses, phytochemicals, and pharmacological facets of P. santalinus, with an intuition for promoting future research to explore its pharmaceutical potential as a therapeutic agent against modern maladies. MATERIAL AND METHODS: Extensive literature search was performed to collate the data by using various electronic search engines. A network pharmacology-based approach is incorporated for validation of traditional claims orbiting around anti-inflammatory properties and directed its future exploration against obesity, ovarian inflammation, ovarian folliculogenesis, and inflammatory breast cancer. RESULTS: In a nutshell, the present review encompasses the phytochemistry, pharmacology of this species intending to sensitize the scientific community for future research on this promising plant. Nearly 85 chemical constituents are reported from the plants wherein bark and leaves are enriched with the lupane and oleanane class of triterpene while sesquiterpenes and polyphenolic compounds are predominantly present in the heartwood of the plant. Although phytochemical investigations are being reported since the mid-twentieth century however there has been recent interest in the evaluation of biological activities such as anti-inflammatory, anti-oxidant, anti-cancer, anti-viral, etc. CONCLUSION: In conclusion, a systematic phytochemical analysis and pharmacological exploration in close collaboration for establishing the therapeutic potential of the chemical constituents present in P. santalinus is recommended to substantiate the traditional claims for bringing it into the mainstream pharmaceutical and commercial utilization.

Respiratory complications in postoperative patients.

OBJECTIVES: This study was conducted to see the extent of respiratory morbidity in the general surgical unit of a teritiary care teaching hospital and to look for probable factors that were responsible for them. METHODS: A prospective study was conducted over a six month period, of patients who underwent both elective and emergency surgeries. Patients were assessed pre-operatively, on the fifth post operative day and at the time of discharge for respiratory complications. RESULTS: Five hundred eighty four consecutive patients who underwent surgeries were studied. Eighty one of them (13.9%) had respiratory complications. Pneumonia was the most common complication (68%). The others included pleural effusion, empyema, pneumothorax and exacerbations of asthma and chronic obstructive pulmonary disease (COPD). One patient developed ARDS (Adult respiratory distress syndrome) and died. Patients who underwent upper abdominal surgery (both elective and emergency), those who had a stay in the surgical ICU for more than 24 hours and those who were on the ventilator for more than 24 hours had a higher incidence of respiratory complications (p < 0.001). CONCLUSION: Respiratory complications increase the morbidity in post operative patients. Pre-operative respiratory illnesses, upper abdominal surgery, ICU stay and mechanical ventilation in the post-operative period predispose patients to respiratory complications. Pre-operative respiratory assessment and treatment of any underlying respiratory disorder is necessary and may decrease the morbidity in surgical patients.

Osteomalacia--fifty five patients seen in a teaching institution over a 4 year period.

A retrospective analysis of 55 cases of osteomalacia shows that poor calcium intake and poor sunlight exposure are the most common causes for osteomalacia. However, in patients with normal nutritional history, other disorders such as renal tubular acidosis and tumour induced osteomalacia should be looked for. A careful drug history, particularly anticonvulsant use is essential. In 4 patients there was an association between anti-tuberculous drug use and osteomalacia. Further prospective studies are needed to determine the relationship between Rifamicin use and osteomalacia.